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Suppose that the functions r and s are defined for all real numbers x as follows. r (x) =x+1 s (x) = 2x Write the
expressions for (r . s) (x) and (r+s) (x) and evaluate (r-s) (-3).
expressions for (r . s) (x) and (r+s) (x) and evaluate (r-s) (-3).
